Imagine a print queue in a busy office environment. Which data structure, implemented using an array, would be most suitable for managing this print queue effectively?
Circular Queue
Binary Tree
Stack
Hash Table
What data structure is used to implement a priority queue?
Array
Linked List
Heap
What value does the 'isEmpty' operation on a queue return if the queue contains no elements?
The first element in the queue
0
True
-1
What is the purpose of the 'front' pointer in an array implementation of a queue?
It points to the most recently added element.
It tracks the total number of elements in the queue.
It points to the element that has been in the queue the longest.
It points to the next available empty location.
If you were to design a system to handle customer service requests arriving through various channels, with each request needing to be addressed in the order it was received, which data structure would be most appropriate?
Binary Search Tree
Queue
Graph
What is the worst-case time complexity of searching for an element in a queue implemented using a linked list?
O(n)
O(log n)
O(n log n)
O(1)
What is the primary characteristic that distinguishes a queue from other linear data structures?
Elements are added at one end and removed from the other.
It allows for random access of elements.
Elements are added and removed from the same end.
It is a sorted data structure.
What happens to the elements in an array-based queue after a dequeue operation?
The array is resized to accommodate the removal of the element.
The dequeued element is marked as deleted but remains in the array.
The remaining elements are shifted one position towards the front of the array.
The 'front' pointer is adjusted to point to the next element in the queue, effectively removing the first element logically.
Which of the following operations on a queue does NOT have a time complexity of O(1) in a standard implementation?
Searching for a specific element
Dequeue
Enqueue
isEmpty
What is the time complexity of enqueue and dequeue operations in a well-implemented array-based queue?
O(n), where n is the number of elements in the queue.
It depends on the size of the array.